VERFAHREN ZUR HERSTELLUNG VON POLYURETHAN-HARTSCHAUMSTOFFEN

    公开(公告)号:EP2563833A1

    公开(公告)日:2013-03-06

    申请号:EP11714995.5

    申请日:2011-04-20

    Applicant: BASF SE

    Abstract: The invention relates to a process for producing polyurethanes via reaction of a) polyisocyanates with b) compounds having at least two hydrogen atoms reactive towards isocyanate groups, characterized in that the compounds b) having at least two hydrogen atoms reactive towards isocyanate groups contain at least one polyether alcohol b1) which has been produced via reaction of an aromatic amine b1a) with propylene oxide with use, as catalyst, of an amine b1b) which differs from b1a).

    Abstract translation: 本发明涉及通过a)多异氰酸酯与b)具有至少两个对异氰酸酯基呈反应性的氢原子的化合物的反应生产聚氨酯的方法,其特征在于具有至少两个对异氰酸酯基团呈反应性的氢原子的化合物b)至少含有 一种聚醚醇b1),其是通过芳族胺b1a)与环氧丙烷反应制备的,与使用不同于b1a)的胺b1b)作为催化剂反应。

    SANDWICHAUFBAU ENTHALTEND EIN VIP UND VERFAHREN ZU DESSEN HERSTELLUNG

    公开(公告)号:EP3365507A1

    公开(公告)日:2018-08-29

    申请号:EP16778819.9

    申请日:2016-10-10

    Applicant: BASF SE

    Abstract: The present invention relates to a method for producing composite elements comprising a first and a second outer layer, a vacuum insulation panel between the two outer layers, rigid polyurethane foam in contact with the first outer layer and the underside of the vacuum insulation panel and also rigid polyurethane foam in contact with the second outer layer and the upper side of the vacuum insulation panel, comprising applying a reaction mixture (R1) for producing a rigid polyurethane foam to the first outer layer, bringing the lower side of a vacuum insulation panel into contact with the uncured reaction mixture (R1), applying a reaction mixture (R2) for producing a rigid polyurethane foam to the upper side of the vacuum insulation panel, bringing the second outer layer into contact with the layer of the uncured reaction mixture (R2), and finally curing the two rigid polyurethane foam systems (R1) and (R2) to obtain the composite element. The present invention also relates to composite elements obtainable in such a way, and to the use of a composite element according to the invention or of a composite element obtainable by a method according to the invention as components for cooling devices or as building material.

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